Elizabeth Betty Ryan
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Elizabeth (Betty) Ryan (nke bụbu Tylko) bụ onye mmepe egwuregwu na onye mmemme America. Ọ rụrụ ọrụ na General Computer Corporation (GCC) n'afọ ndị 1980 ma bụrụ onye ọrụ nke itoolu na nwanyị mbụ na-eme egwuregwu vidio na GCC. Ọ haziri egwuregwu arcade Atari, Inc. nke afọ 1982 Quantum yana ịrụ ọrụ na egwuregwu maka Atari 2600, Atari 5200, na Atari 7800.